MCHC908JW32FAE Freescale Semiconductor, MCHC908JW32FAE Datasheet - Page 63

• Manufacturer Part Number: MCHC908JW32FAE
• Description: IC MCU 32K FLASH 8MHZ 48-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MCHC908JW32FAE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SPI, USB
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 29
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 48-LQFP
• Controller Family/series: HC08
• No. Of I/o's: 48
• Ram Memory Size: 1KB
• Cpu Speed: 8MHz
• No. Of Timers: 1
• Embedded Interface Type: SPI
• Rohs Compliant: Yes
• Processor Series: HC08JW
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SPI, USB
• Number Of Programmable I/os: 29
• Number Of Timers: 2
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, DEMO908GZ60E, M68EML08GZE, KITUSBSPIDGLEVME, KITUSBSPIEVME, KIT33810EKEVME
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Freescale Semiconductor
3. Calculate N:
4. Calculate and verify the adequacy of the VCO and bus frequencies f
5. Select the VCO’s power-of-two range multiplier E, according to this table:
6. Select a VCO linear range multiplier, L, where f
7. Calculate and verify the adequacy of the VCO programmed center-of-range frequency, f
8. Verify the choice of P, R, N, E, and L by comparing f
center-of-range frequency is the midpoint between the minimum and maximum frequencies
attainable by the PLL.
For proper operation,
operation, f
as possible to f
Exceeding the recommended maximum bus frequency or VCO frequency
can crash the MCU.
VCLK
VCLK.
must be within the application’s tolerance of f
NOTE: Do not program E to a value of 3.
19,660,800 ≤ f
9,830,400 ≤ f
0 < f
MC68HC908JW32 Data Sheet, Rev. 6
Frequency Range
N
VCLK
=
f
VRS
L
f
VCLK
round
VRS
VCLK
=
f
< 9,830,400
VCLK
f
–
BUS
round
f
< 19,660,800
< 39,321,600
VCLK
=
⎛
⎜
⎝
NOTE
R f
------------------------------------ -
(
=
=
L 2
f
×
⎛
⎜
⎝
RCLK
×
2
----------- f
--------------------------
2
f
---------- -
≤
VCLK
P
R
E
VCLKDES
NOM
f
6
f
--------------------------
N
E
VCLK
×
NOM
)f
(
×
f
NOM
NOM
RCLK
2
2
= 125kHz
VCLK
P
×
⎞
⎟
⎠
2
⎞
⎟
⎠
)
E
to f
VRS
VCLKDES
and f
E
0
1
2
VCLK
, and f
VCLKDES
and f
VRS
Functional Description
BUS
. For proper
must be as close
.
VRS
. The
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